package com.pro.addresslist.ui.view;

import com.pro.addresslist.R;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.EditText;



public class FindEditText extends EditText implements  
OnFocusChangeListener, TextWatcher { 
	



private Drawable mClearDrawable; 

public FindEditText(Context context) { 
this(context, null); 
} 

public FindEditText(Context context, AttributeSet attrs) { 
//这里构造方法也很重要，不加这个很多属性不能再XML里面定义
this(context, attrs, android.R.attr.editTextStyle); 
} 

public FindEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}


private void init() { 
//获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
mClearDrawable = getCompoundDrawables()[2]; 
if (mClearDrawable == null) { 
	mClearDrawable = getResources() 
            .getDrawable(R.drawable.emotionstore_progresscancelbtn); 
} 
mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight()); 
setClearIconVisible(false); 
setOnFocusChangeListener(this); 
addTextChangedListener(this); 
} 


/**
* 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件
* 当我们按下的位置 在  EditText的宽度 - 图标到控件右边的间距 - 图标的宽度  和
* EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
*/
@Override 
public boolean onTouchEvent(MotionEvent event) { 
if (getCompoundDrawables()[2] != null) { 
    if (event.getAction() == MotionEvent.ACTION_UP) { 
    	boolean touchable = event.getX() > (getWidth() 
                - getPaddingRight() - mClearDrawable.getIntrinsicWidth()) 
                && (event.getX() < ((getWidth() - getPaddingRight())));
        if (touchable) { 
            this.setText(""); 
        } 
    } 
} 

return super.onTouchEvent(event); 
} 

/**
* 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
*/
@Override 
public void onFocusChange(View v, boolean hasFocus) { 
if (hasFocus) { 
    setClearIconVisible(getText().length() > 0); 
} else { 
    setClearIconVisible(false); 
} 
} 


/**
* 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
* @param visible
*/
protected void setClearIconVisible(boolean visible) { 
Drawable right = visible ? mClearDrawable : null; 
setCompoundDrawables(getCompoundDrawables()[0], 
        getCompoundDrawables()[1], right, getCompoundDrawables()[3]); 
} 


/**
* 当输入框里面内容发生变化的时候回调的方法
*/
@Override 
public void onTextChanged(CharSequence s, int start, int count, 
    int after) { 
setClearIconVisible(s.length() > 0); 
} 

@Override 
public void beforeTextChanged(CharSequence s, int start, int count, 
    int after) { 
 
} 

@Override 
public void afterTextChanged(Editable s) { 
 
} 


/**
* 设置晃动动画
*/
public void setShakeAnimation(){
this.setAnimation(shakeAnimation(5));
}


/**
* 晃动动画
* @param counts 1秒钟晃动多少下
* @return
*/
public static Animation shakeAnimation(int counts){
Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
translateAnimation.setInterpolator(new CycleInterpolator(counts));
translateAnimation.setDuration(1000);
return translateAnimation;
}
}
